APA (7. basım) Alıntı

Pratchett, T. (1988). Wyrd systems. Corgi Books.

Chicago Style (17. basım) Atıf

Pratchett, Terry. Wyrd Systems. London: Corgi Books, 1988.

MLA (8th ed.) Atıf

Pratchett, Terry. Wyrd Systems. Corgi Books, 1988.